https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63714
--- Comment #14 from Michael Felt <aixtools at gmail dot com> --- Please accept my apologies for replying here, the gcc-help is not a high traffic list today :) and I removed myself from the gcc-bugs list. I checked out the BULL and Perlz sites (I am slowly building one of my own, no advertisement here) and there are two concerns: For AIX 5.3 (TL7) - which is the base level I am trying to build from (not concerned with AIX 5.3 TL6 and earlier - need to draw a line somewhere) I am packaging tools in /opt/{bin,sbin,lib,include} and /opt/aixtools/{...}. The reasoning is simple: in /opt/freeware IBM, BULL and perlz put their software. And, if I understand perlz correctly I continue having dependencies in files placed there - packaged as RPM. I am not packaging as RPM and do not want to have to worry if something I build overwrites an IBM file and vice versa. So, I am back at my original reason for not wanting to even use these compilers as a baseline: they set dependencies to where things go. If Michael Perlz could not change that, I have no illusion that I will succeed there suddenly. Generally speaking the perlz distribution is fairly recent, BULL is oldish. BULL gcc-4.6.1-1.aix5.3.ppc.rpm libgcc-4.6.1-1.aix5.3.ppc.rpm gmp-5.0.2-1.aix5.3.ppc.rpm libiconv-1.13.1-2.aix5.3.ppc.rpm gettext-0.17-6.aix5.3.ppc.rpm libmpc-0.9-1.aix5.3.ppc.rpm mpfr-3.0.1-1.aix5.3.ppc.rpm zlib-1.2.5-2.aix5.3.ppc.rpm info-4.13-3.aix5.3.ppc.rpm bash-4.2-5.aix5.3.ppc.rpm Perlz has 4.8.2 compiled for AIX 5.3, comparably current dependencies